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At that tail of the warhead, the drag armour-piercing firebomb is filled with a drag agent and a fireagent, Under the pressure of propellant propelling warhead, it will spontaneously ignite to produce open flame, So it can break through the oil drum and ignite or detonate the gasoline. However, the old-fashioned traced armour-piercing firebombs have obvious trajectories due to traced light when they are launched. Therefore, it is very easy to expose oneself while pointing targets to friendly forces. Therefore, the new tracer armour-piercing firebombs now equipped all start to burn and emit light only after the projectile flies out of the muzzle for a certain distance (the generally set safe distance is 100 meters, which makes it impossible for the enemy to judge the firing position with tracer ammunition, while targets within 100 meters do not need to be indicated by tracer), The principle is generally to ignite the tracer and combustion agent carried by the projectile by accumulating the heat generated by the warhead's friction with the air after flying for a certain distance to a certain extent.1990 BAFTA电影奖 最佳电该剧从一个小小的售楼处展开。通过几位售楼小姐的工作和生活片断，探讨当代白领阶层在对待恋爱、事业、金钱和家庭等诸多方面的人生态度。　　振兴柔道社的谎言、学校强制停赛的处分、古夏不可告人的过去、偶像女神的退团，以及最佳拍档的拆伙，随着难题一一爆发，袁非、郁佳和云青，又将会和柔道社的小伙伴们，迈向怎样的未来呢？Such asResource isolation can be regarded as a protective shield for user services. This protective system has extremely powerful data and traffic processing capabilities to filter abnormal traffic and requests for users. For example, for Syn Flood, the shield will respond to Syn Cookie or Syn Reset authentication, filter forged source data packets or attacks of power generation through authentication of data sources, and protect the server from malicious connection erosion. The resource isolation system mainly protects the third and fourth layers of ISO model. The schematic diagram of resource isolation is as follows: